The How Appealing Blog links to two articles on the United States v. Stevens case, which is pending in the U.S. Supreme Court. (See previous posts on the case here). The first article in available at the First Amendment Center's website and is entitled "History of animal cruelty law at issue in Stevens poses incongruity." The second article by Professor Sherry Colb is posted at FindLaw and deals with the genesis of the law on depictions of animal cruelty and the implication for other animal suffering. It's definitely worth checking out.